121 lines
3.5 KiB
Plaintext
121 lines
3.5 KiB
Plaintext
%% LyX 2.2.1 created this file. For more info, see http://www.lyx.org/.
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%% Do not edit unless you really know what you are doing.
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\documentclass[10pt]{beamer}
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\usepackage[T1]{fontenc}
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\setcounter{secnumdepth}{3}
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\setcounter{tocdepth}{3}
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\usepackage{url}
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\ifx\hypersetup\undefined
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\AtBeginDocument{%
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\hypersetup{unicode=true,pdfusetitle,
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bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
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breaklinks=false,pdfborder={0 0 0},pdfborderstyle={},backref=false,colorlinks=false}
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}
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\else
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\hypersetup{unicode=true,pdfusetitle,
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bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
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breaklinks=false,pdfborder={0 0 0},pdfborderstyle={},backref=false,colorlinks=false}
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\fi
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\usepackage{breakurl}
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\makeatletter
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LyX specific LaTeX commands.
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\providecommand{\LyX}{\texorpdfstring%
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{L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\@}
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{LyX}}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Textclass specific LaTeX commands.
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% this default might be overridden by plain title style
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\newcommand\makebeamertitle{\frame{\maketitle}}%
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% (ERT) argument for the TOC
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\AtBeginDocument{%
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\let\origtableofcontents=\tableofcontents
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\def\tableofcontents{\@ifnextchar[{\origtableofcontents}{\gobbletableofcontents}}
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\def\gobbletableofcontents#1{\origtableofcontents}
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}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
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\usetheme{PaloAlto}
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\makeatother
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\begin{document}
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<<setup, include=FALSE>>=
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library(knitr)
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opts_chunk$set(fig.path='figure/beamer-',fig.align='center',fig.show='hold',size='footnotesize')
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@
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\title[knitr, Beamer, and FragileFrame]{A Minimal Demo of knitr with Beamer and Fragile Frames}
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\author{Yihui Xie\thanks{I thank Richard E. Goldberg for providing this demo.}}
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\makebeamertitle
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\begin{frame}{Background}
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\begin{itemize}
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\item The \textbf{knitr}\textbf{\emph{ }}package allows you to embed R code
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and figures in \LaTeX{} documents
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\begin{itemize}
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\item It has functionality similar to Sweave but looks nicer and gives you
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more control
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\end{itemize}
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\item If you already have Sweave working in \LyX{}, getting \textbf{knitr}
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to work is trivial
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\begin{enumerate}
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\item Install the \textbf{knitr} package in \emph{R}
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\item Read \url{https://yihui.org/knitr/demo/lyx/}
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\end{enumerate}
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\item If you use Sweave or \textbf{knitr} with Beamer in \LyX{}, you must
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use the\emph{ FragileFrame} environment for the frames that contain
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R code chunks. Let's see if \textbf{knitr} works with Beamer in this
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small demo.
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\end{itemize}
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\end{frame}
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\section{First Test}
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\begin{frame}[fragile]{First Test}
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OK, let's get started with just some text:
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<<echo=FALSE,results='hide'>>=
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# some setup
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options(width=60) # make the printing fit on the page
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set.seed(1121) # make the results repeatable
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@
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<<>>=
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# create some random numbers
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(x=rnorm(20))
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mean(x);var(x)
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@
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BTW, the first element of \texttt{x} is \Sexpr{x[1]}. (Did you notice
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the use of\texttt{ \textbackslash{}Sexpr\{\}}?)
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\end{frame}
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\section{Second Test}
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\begin{frame}[fragile]{Second Test}
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Text is nice but let's see what happens if we make a couple of plots
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in our chunk:
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<<boring-plots,fig.width=4,fig.height=4,out.width='.45\\linewidth'>>=
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par(las=1,mar=c(4,4,.1,.1)) # tick labels direction
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boxplot(x)
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hist(x,main='',col="blue",probability=TRUE)
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lines(density(x),col="red")
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@
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\end{frame}
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\section{The Big Question}
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\begin{frame}{The Big Question}
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Do the above chunks work? You should be able to compile the \LyX{}
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document and get a nice-looking PDF slide presentation. If not, time
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to double-check everything...
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\end{frame}
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\end{document}
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